Biological Sciences and Healthcare, part 2

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Organ system > cardiovascular system > Venous system > Vein > Systemic venous structure > Structure of systemic vein of trunk > Pelvic vein > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Organ system > cardiovascular system > blood vessel > Vein > Systemic venous structure > Structure of systemic vein of trunk > Pelvic vein > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Body organ > blood vessel > Vein > Systemic venous structure > Structure of systemic vein of trunk > Pelvic vein > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Body tissue > Soft tissues > blood vessel > Vein > Systemic venous structure > Structure of systemic vein of trunk > Pelvic vein > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Topographic region > Body part > Lower body > Lower body part > Lower trunk > Structure of pelvic region of trunk (body structure) > pelvis > Pelvic vascular structure > Pelvic vein > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Topographic region > Body part > Trunk > Structure of subregion of trunk (body structure) > Lower trunk > Structure of pelvic region of trunk (body structure) > pelvis > Pelvic vascular structure > Pelvic vein > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Topographic region > Body part > Lower body > Lower body part > Lower trunk > Pelvic cross-sectional segment of trunk > pelvis > Pelvic vascular structure > Pelvic vein > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Topographic region > Body part > Trunk > Structure of subregion of trunk (body structure) > Lower trunk > Pelvic cross-sectional segment of trunk > pelvis > Pelvic vascular structure > Pelvic vein > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Topographic region > Body part > Trunk > Structure of subregion of trunk (body structure) > Structure of abdominopelvic cross-sectional segment of trunk > Pelvic cross-sectional segment of trunk > pelvis > Pelvic vascular structure > Pelvic vein > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Topographic region > Body part > Trunk > Soft tissues of trunk > Soft tissue of abdomen > Abdominal blood vessel > Pelvic vascular structure > Pelvic vein > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Body tissue > Soft tissues > Soft tissues of trunk > Soft tissue of abdomen > Abdominal blood vessel > Pelvic vascular structure > Pelvic vein > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Topographic region > Body part > Lower body > Lower body part > Lower trunk > Abdomen > Soft tissue of abdomen > Abdominal blood vessel > Pelvic vascular structure > Pelvic vein > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Topographic region > Body part > Trunk > Structure of subregion of trunk (body structure) > Lower trunk > Abdomen > Soft tissue of abdomen > Abdominal blood vessel > Pelvic vascular structure > Pelvic vein > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Topographic region > Body part > Trunk > Structure of subregion of trunk (body structure) > Structure of abdominopelvic cross-sectional segment of trunk > Abdomen > Soft tissue of abdomen > Abdominal blood vessel > Pelvic vascular structure > Pelvic vein > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Topographic region > Body part > Lower body > Lower body part > Lower trunk > Structure of pelvic region of trunk (body structure) > Anorectal structure > anus > Anus part > Anal canal > Region of anal canal > Pecten ani > Hemorrhoidal zone > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Topographic region > Body part > Trunk > Structure of subregion of trunk (body structure) > Lower trunk > Structure of pelvic region of trunk (body structure) > Anorectal structure > anus > Anus part > Anal canal > Region of anal canal > Pecten ani > Hemorrhoidal zone > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Organ system > digestive system > digestive tract > Digestive tract part (body structure) > Gastrointestinal tract > Anorectal structure > anus > Anus part > Anal canal > Region of anal canal > Pecten ani > Hemorrhoidal zone > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Topographic region > Body part > Lower body > Lower body part > Lower trunk > Structure of pelvic region of trunk (body structure) > Perineum > Anal region > anus > Anus part > Anal canal > Region of anal canal > Pecten ani > Hemorrhoidal zone > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Topographic region > Body part > Trunk > Structure of subregion of trunk (body structure) > Lower trunk > Structure of pelvic region of trunk (body structure) > Perineum > Anal region > anus > Anus part > Anal canal > Region of anal canal > Pecten ani > Hemorrhoidal zone > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Topographic region > Body part > Lower body > Lower body part > Lower trunk > Pelvic cross-sectional segment of trunk > Perineum > Anal region > anus > Anus part > Anal canal > Region of anal canal > Pecten ani > Hemorrhoidal zone > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Topographic region > Body part > Trunk > Structure of subregion of trunk (body structure) > Lower trunk > Pelvic cross-sectional segment of trunk > Perineum > Anal region > anus > Anus part > Anal canal > Region of anal canal > Pecten ani > Hemorrhoidal zone > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)

... > Body structure > Anatomical or acquired body structure (body structure) > Anatomical structure > Topographic region > Body part > Trunk > Structure of subregion of trunk (body structure) > Structure of abdominopelvic cross-sectional segment of trunk > Pelvic cross-sectional segment of trunk > Perineum > Anal region > anus > Anus part > Anal canal > Region of anal canal > Pecten ani > Hemorrhoidal zone > Hemorrhoidal plexus > External rectal venous plexus > Entire external rectal venous plexus (body structure)